1.

The shadow of a tower standing on a level plane is found to be 50 mt longer when the suns altitude is 30^(@)then that when it45^(@) then the height of the tower is

Answer»

` 25( SQRT3+ 1) `
` 25( sqrt3-1) `
` 20 (sqrt3+1) `
` 20 ( sqrt3-1) `

ANSWER :A


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